Create function test helpers

hotel-management/src/helpers/__tests__/helpers.test.ts

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+import { formatCurrency } from '@helper/helper';
+
+describe('Helpers function test', () => {
+  test('Format number to currency format', () => {
+    const result = formatCurrency(5000);
+
+    expect(result).toEqual('$5,000.00');
+  });
+});

hotel-management/src/helpers/__tests__/validators.test.ts

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+import { REGEX } from '@constant/commons';
+import { isValidDiscount, isValidRegex, isValidString } from '@helper/validators';
+
+describe('Check value is valid phone', () => {
+  test('Is valid phone', () => {
+    const result = isValidRegex(new RegExp(REGEX.PHONE), '0327212321');
+
+    expect(result).toEqual(true);
+  });
+
+  test('Is invalid phone', () => {
+    const result = isValidRegex(new RegExp(REGEX.PHONE), '0327212321Abc');
+
+    expect(result).toEqual(false);
+  });
+});
+
+describe('Check value is valid discount', () => {
+  test('Is valid discount', () => {
+    const result = isValidDiscount(23);
+
+    expect(result).toEqual(true);
+  });
+
+  test('Is invalid discount', () => {
+    const result = isValidDiscount(101);
+
+    expect(result).toEqual(false);
+  });
+});
+
+describe('Check value is valid string', () => {
+  test('Is valid string', () => {
+    const result = isValidString('Phan Huu Loi');
+
+    expect(result).toEqual(true);
+  });
+
+  test('Is valid string', () => {
+    const result = isValidString('Phan');
+
+    expect(result).toEqual(false);
+  });
+});

hotel-management/src/hooks/__tests__/rooms.test.tsx

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+import { useRooms } from '@hook/rooms/useRooms';
+import { renderHook, waitFor } from '@testing-library/react';
+
+describe('CRUD Room testing', () => {
+  test('Fetch room data', async () => {
+    const { result } = renderHook(() => useRooms());
+    const { rooms } = result.current;
+
+    await waitFor(() => expect(rooms?.length).toBeGreaterThan(0))
+  })
+})